frighteningly

adv

"frighteningly" is a 13-letter English headword indexed on PlainSpell.

The verdict

“frighteningly” is uncommon English (frequency #52,334 among 2,507 “F” headwords), classed as an adverb. The kind of spelling people second-guess.

#52,334
frequency rank, English
2,507
“F” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - In a frightening or terrifying manner.

Corpus desk

Index EN-frighteningly · frighteningly · English

frighteningly · rank #52,334 · 0 variants · 0 confusables

  • FREQ-RARE #52,334
  • LEN-MEGA 13 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,507
  • PHOTO-FINISH freshener

Nearest frequency peer: freshener (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “frighteningly”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “frighteningly” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for frighteningly
PropertyValue
Headwordfrighteningly
LanguageEnglish
Part of speechAdverb
Letters13
Frequency rank#52,334
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “frighteningly” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).frighteninglyfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “freshener” (#52,333), “frilly” (#52,335), “Fredericton” (#52,332). Among 2,507 “F” headwords, “frighteningly” is #52,334. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

frighteningly is uncommon English at frequency #52,334 among 2,507 “F” headwords, classed as anadverb. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for frighteningly, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From frightening + -ly. The correct English form is frighteningly, spelled F-R-I-G-H-T-E-N-I-N-G-L-Y.

Definition

  1. 1
    In a frightening or terrifying manner.
  2. 2
    Very; beyond usual expectation so as to cause surprise or concern.

Recorded use

Wiktionary examples

These source excerpts show how frighteningly appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The pitcher that was set before me was frighteningly large.
  2. Risk is everywhere.[…]For each [kind] there is a frighteningly precise measurement of just how likely it is to jump from the shadows and get you. “The Norm Chronicles”[…]aims to help data-phobes find their way through this blizzard of risks.

Etymology

From frightening + -ly.

Synonyms

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "frighteningly"?
"frighteningly" is spelled F-R-I-G-H-T-E-N-I-N-G-L-Y.
What does "frighteningly" mean?
As an adverb, "frighteningly" means: In a frightening or terrifying manner.
What is the origin of the word "frighteningly"?
From frightening + -ly. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "frighteningly", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 13 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list